gh0strat | 0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e

General

Target
0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e.exe
Size 1.3MB
Sample260528-ev281sfs4m
SHA256 0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e
MD5 32d55ee2b87b4182965aa0b740611043
SHA1 c56b38d5546ef5bacaed49de0951a403c59b4d3f
SHA512 c25d849061f16900d735860c63f041926eadd9bec047b6214708a703ef4d9d1257c13a46565f3133d8e249137b8e1ae2627992755bbb15d7e3482bfd675afb98
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNP:QHPkVOBTK
TLSH
T138557A591BAB4256DB5877B9C8A6A69409090F432F58C4B11E311E1EBD2734FFC23EBC
MD5 SHA1 SHA512 SSDEEP TLSH

Score

10^/10

discovery gh0strat purplefox persistence rat rootkit trojan

Malware Config

Signatures

Family: Gh0strat
Gh0st RAT is a remote access tool (RAT) with its source code public and it has been used by multiple Chinese groups.
rat gh0strat
Family: PurpleFox
PurpleFox is an exploit kit used to distribute other malware families and first seen in 2018.
rootkit trojan purplefox

Detect PurpleFox Rootkit 3 IoCs

Detect PurpleFox Rootkit.

rootkit

resource	yara_rule
behavioral2/memory/2464-2-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1200-11-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit
behavioral2/memory/1128-18-0x0000000010000000-0x000000001019F000-memory.dmp	purplefox_rootkit

Gh0st RAT payload 3 IoCs

resource	yara_rule
behavioral2/memory/2464-2-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1200-11-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat
behavioral2/memory/1128-18-0x0000000010000000-0x000000001019F000-memory.dmp	family_gh0strat

Drops file in Drivers directory 1 IoCs

description	ioc	Process
File created	C:\Windows\system32\drivers\QAssist.sys	Dtldt.exe

Sets service image path in registry 3 TTPs 1 IoCs

This determines the executable launched when a service starts. It can be used to establish persistence.

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

Windows Service

T1543.003

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Services\QAssist\ImagePath = "system32\\DRIVERS\\QAssist.sys"	Dtldt.exe

Executes dropped EXE 2 IoCs

pid	Process
1200	Dtldt.exe
1128	Dtldt.exe

Drops file in System32 directory 2 IoCs

description	ioc	Process
File created	C:\Windows\SysWOW64\Dtldt.exe	0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e.exe
File opened for modification	C:\Windows\SysWOW64\Dtldt.exe	0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e.exe

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	cmd.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	PING.EXE
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Dtldt.exe

System Network Configuration Discovery: Internet Connection Discovery 1 TTPs 2 IoCs

Adversaries may check for Internet connectivity on compromised systems.

discovery

Internet Connection Discovery

T1016.001

pid	Process
2276	cmd.exe
3148	PING.EXE

Modifies data under HKEY_USERS 3 IoCs

description	ioc	Process
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Content\CachePrefix	Dtldt.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\Cookies\CachePrefix = "Cookie:"	Dtldt.exe
Set value (str)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\5.0\Cache\History\CachePrefix = "Visited:"	Dtldt.exe

Runs ping.exe 1 TTPs 1 IoCs

Remote System Discovery

T1018

pid	Process
3148	PING.EXE

Suspicious behavior: LoadsDriver 1 IoCs

pid	Process
1128	Dtldt.exe

Suspicious use of AdjustPrivilegeToken 6 IoCs

description	pid	Process
Token: SeIncBasePriorityPrivilege	2464	0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e.exe
Token: SeLoadDriverPrivilege	1128	Dtldt.exe
Token: 33	1128	Dtldt.exe
Token: SeIncBasePriorityPrivilege	1128	Dtldt.exe
Token: 33	1128	Dtldt.exe
Token: SeIncBasePriorityPrivilege	1128	Dtldt.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 2464 wrote to memory of 2276	2464	0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e.exe	82
PID 1200 wrote to memory of 1128	1200	Dtldt.exe	83
PID 2276 wrote to memory of 3148	2276	cmd.exe	85

C:\Users\Admin\AppData\Local\Temp\0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e.exe
"C:\Users\Admin\AppData\Local\Temp\0047514fb7ad31c211e817973a24649d65492468beebb9835083fb0a796d371e.exe"
1⤵
- Drops file in System32 directory
- System Location Discovery: System Language Discovery
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:2464
- C:\Windows\SysWOW64\cmd.exe
  C:\Windows\system32\cmd.exe /c ping -n 2 127.0.0.1 > nul && del C:\Users\Admin\AppData\Local\Temp\004751~1.EXE > nul
  2⤵
  - System Location Discovery: System Language Discovery
  - System Network Configuration Discovery: Internet Connection Discovery
  - Suspicious use of WriteProcessMemory
  PID:2276
- - C:\Windows\SysWOW64\PING.EXE
    ping -n 2 127.0.0.1
    3⤵
    - System Location Discovery: System Language Discovery
    - System Network Configuration Discovery: Internet Connection Discovery
    - Runs ping.exe
    PID:3148

C:\Windows\SysWOW64\Dtldt.exe
C:\Windows\SysWOW64\Dtldt.exe -auto
1⤵
- Executes dropped EXE
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1200
- C:\Windows\SysWOW64\Dtldt.exe
  C:\Windows\SysWOW64\Dtldt.exe -acsi
  2⤵
  - Drops file in Drivers directory
  - Sets service image path in registry
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  - Modifies data under HKEY_USERS
  - Suspicious behavior: LoadsDriver
  - Suspicious use of AdjustPrivilegeToken
  PID:1128

Network

MITRE ATT&CK Enterprise v16

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Create or Modify System Process

1

T1543

Windows Service

1

T1543.003

Defense Evasion

Modify Registry

1

T1112

Credential Access

Discovery

Remote System Discovery

1

T1018

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

System Network Configuration Discovery

1

T1016

Internet Connection Discovery

1

T1016.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

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Downloads

Dtldt.exe

Path C:\Windows\SysWOW64\Dtldt.exe
Size 3.3MB
SHA256 10b0920f1941c1d08a07cc29efe7822de77c031ad7a3ff88d71791afbed72090
MD5 574cf3be1bad06da24ab403077d179e8
SHA1 c04b0143308fdd5e7d604180d972b272c09468dc
SHA512 f868c0c9cf700a5173d815e4a74a6cd3ef469fc570ffbb7a5a29fcb9e42fbd6eec85cf65e21587e20d18b0ed94a1522250b48e9ab0d6d9a7759c8d16b783e124
SSDEEP 24576:dOyHutimZ9VSly2hVvHW6qMnSbTBBhBMNPI:QHPkVOBTKQ
TLSH
T1C7F5292946362450D35573B4D5698489413A8E87BF2C88349C329C8EFCB769DECA3FBD
MD5 SHA1 SHA512 SSDEEP TLSH

Submit Download

memory/1128-18-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/1200-11-0x0000000010000000-0x000000001019F000-memory.dmp

Download

memory/2464-2-0x0000000010000000-0x000000001019F000-memory.dmp

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v16

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Downloads